Elementary Mechanical Drawing: Theory and Practice

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McGraw-Hill book Company, Incorporated, 1915 - Geometrical drawing - 250 pages
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Page 224 - PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the center.
Page 209 - ... possible ways to define the circumference of a circle. Statically, the circumference of a circle can be defined as the locus of all points in a plane a given distance from some point in the plane which we designate as the center. On the other hand, we could define the circumference kinematically as the curve generated by a point moving in a plane in such a way that it is always the same distance from some point in the plane designated as the center and it returns to the position of departure....
Page 182 - These parallels will divide the given line into the required number of equal parts.
Page 212 - One of the conic sections, being a curve formed by the intersection of the surface of a cone with a plane parallel to one of its sides.
Page 189 - Draw two diameters AB and CD at right angles to each other. Bisect the radius eB.
Page 217 - Thus when it is said that the sum of the three angles of any triangle is equal to two right angles, this is a theorem, the truth of which is demonstrated by Geometry.
Page 181 - To Draw a Line Perpendicular to a Given Line from a Point on the Line, or Outside the Line.
Page 230 - A regular prism is one whose bases are regular polygons and whose axis is perpendicular.
Page 180 - To Draw a Line Parallel to a Given Line through a Given Point.
Page 227 - AB is a chord of a circle whose centre is O ; C is the mid.point of the chord AB. Show that OC is perpendicular to AB.

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